<?php
namespace Symfony\Component\DependencyInjection\Loader;
use Symfony\Component\DependencyInjection\DefinitionDecorator;
use Symfony\Component\DependencyInjection\Alias;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\Config\Resource\FileResource;
use Symfony\Component\Yaml\Yaml;
class YamlFileLoader extends FileLoader {
public function load($file, $type = null) {
$path = $this->locator
->locate($file);
$content = $this
->loadFile($path);
$this->container
->addResource(new FileResource($path));
if (null === $content) {
return;
}
$this
->parseImports($content, $file);
if (isset($content['parameters'])) {
foreach ($content['parameters'] as $key => $value) {
$this->container
->setParameter($key, $this
->resolveServices($value));
}
}
$this
->loadFromExtensions($content);
$this
->parseDefinitions($content, $file);
}
public function supports($resource, $type = null) {
return is_string($resource) && 'yml' === pathinfo($resource, PATHINFO_EXTENSION);
}
private function parseImports($content, $file) {
if (!isset($content['imports'])) {
return;
}
foreach ($content['imports'] as $import) {
$this
->setCurrentDir(dirname($file));
$this
->import($import['resource'], null, isset($import['ignore_errors']) ? (bool) $import['ignore_errors'] : false, $file);
}
}
private function parseDefinitions($content, $file) {
if (!isset($content['services'])) {
return;
}
foreach ($content['services'] as $id => $service) {
$this
->parseDefinition($id, $service, $file);
}
}
private function parseDefinition($id, $service, $file) {
if (is_string($service) && 0 === strpos($service, '@')) {
$this->container
->setAlias($id, substr($service, 1));
return;
}
elseif (isset($service['alias'])) {
$public = !array_key_exists('public', $service) || (bool) $service['public'];
$this->container
->setAlias($id, new Alias($service['alias'], $public));
return;
}
if (isset($service['parent'])) {
$definition = new DefinitionDecorator($service['parent']);
}
else {
$definition = new Definition();
}
if (isset($service['class'])) {
$definition
->setClass($service['class']);
}
if (isset($service['scope'])) {
$definition
->setScope($service['scope']);
}
if (isset($service['synthetic'])) {
$definition
->setSynthetic($service['synthetic']);
}
if (isset($service['public'])) {
$definition
->setPublic($service['public']);
}
if (isset($service['abstract'])) {
$definition
->setAbstract($service['abstract']);
}
if (isset($service['factory_class'])) {
$definition
->setFactoryClass($service['factory_class']);
}
if (isset($service['factory_method'])) {
$definition
->setFactoryMethod($service['factory_method']);
}
if (isset($service['factory_service'])) {
$definition
->setFactoryService($service['factory_service']);
}
if (isset($service['file'])) {
$definition
->setFile($service['file']);
}
if (isset($service['arguments'])) {
$definition
->setArguments($this
->resolveServices($service['arguments']));
}
if (isset($service['properties'])) {
$definition
->setProperties($this
->resolveServices($service['properties']));
}
if (isset($service['configurator'])) {
if (is_string($service['configurator'])) {
$definition
->setConfigurator($service['configurator']);
}
else {
$definition
->setConfigurator(array(
$this
->resolveServices($service['configurator'][0]),
$service['configurator'][1],
));
}
}
if (isset($service['calls'])) {
foreach ($service['calls'] as $call) {
$args = isset($call[1]) ? $this
->resolveServices($call[1]) : array();
$definition
->addMethodCall($call[0], $args);
}
}
if (isset($service['tags'])) {
if (!is_array($service['tags'])) {
throw new InvalidArgumentException(sprintf('Parameter "tags" must be an array for service "%s" in %s.', $id, $file));
}
foreach ($service['tags'] as $tag) {
if (!isset($tag['name'])) {
throw new InvalidArgumentException(sprintf('A "tags" entry is missing a "name" key for service "%s" in %s.', $id, $file));
}
$name = $tag['name'];
unset($tag['name']);
foreach ($tag as $attribute => $value) {
if (!is_scalar($value)) {
throw new InvalidArgumentException(sprintf('A "tags" attribute must be of a scalar-type for service "%s", tag "%s" in %s.', $id, $name, $file));
}
}
$definition
->addTag($name, $tag);
}
}
$this->container
->setDefinition($id, $definition);
}
private function loadFile($file) {
return $this
->validate(Yaml::parse($file), $file);
}
private function validate($content, $file) {
if (null === $content) {
return $content;
}
if (!is_array($content)) {
throw new InvalidArgumentException(sprintf('The service file "%s" is not valid.', $file));
}
foreach (array_keys($content) as $namespace) {
if (in_array($namespace, array(
'imports',
'parameters',
'services',
))) {
continue;
}
if (!$this->container
->hasExtension($namespace)) {
$extensionNamespaces = array_filter(array_map(function ($ext) {
return $ext
->getAlias();
}, $this->container
->getExtensions()));
throw new InvalidArgumentException(sprintf('There is no extension able to load the configuration for "%s" (in %s). Looked for namespace "%s", found %s', $namespace, $file, $namespace, $extensionNamespaces ? sprintf('"%s"', implode('", "', $extensionNamespaces)) : 'none'));
}
}
return $content;
}
private function resolveServices($value) {
if (is_array($value)) {
$value = array_map(array(
$this,
'resolveServices',
), $value);
}
elseif (is_string($value) && 0 === strpos($value, '@')) {
if (0 === strpos($value, '@?')) {
$value = substr($value, 2);
$invalidBehavior = ContainerInterface::IGNORE_ON_INVALID_REFERENCE;
}
else {
$value = substr($value, 1);
$invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE;
}
if ('=' === substr($value, -1)) {
$value = substr($value, 0, -1);
$strict = false;
}
else {
$strict = true;
}
$value = new Reference($value, $invalidBehavior, $strict);
}
return $value;
}
private function loadFromExtensions($content) {
foreach ($content as $namespace => $values) {
if (in_array($namespace, array(
'imports',
'parameters',
'services',
))) {
continue;
}
if (!is_array($values)) {
$values = array();
}
$this->container
->loadFromExtension($namespace, $values);
}
}
}